Dd No 101 Reservoir Report

Last Updated: December 5, 2025

Dd No 101, located in Sedgwick, Kansas, is a key structure managed by the local government for flood risk reduction along the Sand Creek-TR river.


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Summary

Designed by Gene Bohnenblust P.E. and USDA NRCS, this earth dam stands at a height of 16.3 feet and stretches 3200 feet in length. Completed in 1986, it has a storage capacity of 1466.3 acre-feet and a normal storage of 26.5 acre-feet, serving as a crucial line of defense against potential flooding in the region.

Despite being classified with a low hazard potential, Dd No 101 plays a vital role in safeguarding the surrounding area from flood risks, with a moderate risk assessment rating of 3. The dam's spillway, with a width of 40 feet, is uncontrolled, allowing for the safe release of excess water during heavy rainfall events. While the condition of the dam is currently not rated, it undergoes regular inspections by the Kansas Department of Agriculture to ensure its structural integrity and effectiveness in flood control.

As a part of the larger network of water resource management in Kansas, Dd No 101 stands as a testament to the collaborative efforts of various agencies, including the Natural Resources Conservation Service, in ensuring the safety and security of the local community against the impacts of climate change and extreme weather events. With its strategic location and design, this dam serves as a critical infrastructure for water resource and climate enthusiasts alike, highlighting the importance of proactive measures in mitigating the effects of natural disasters.

Year Completed

1986

Dam Length

3200

Dam Height

16.3

River Or Stream

SAND CREEK-TR

Primary Dam Type

Earth

Surface Area

15.9

Drainage Area

2.31

Nid Storage

1466.3

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

16
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.